classes and enumerability

Boris Zbarsky bzbarsky at
Wed Dec 24 20:54:20 PST 2014

On 12/24/14 4:22 PM, Brendan Eich wrote:
> We aren't going to reverse-Conway the core language built-ins to have
> enumerable methods, ever

Sure.  Note that this was not one of my three possible listed courses of 

> -- so I think the right attack is on the quirky DOM.

I think the fundamental assumption that the DOM is "quirky" is broken. 
The DOM is what it is.  It dates back on the web just as far as ES does. 
  It was largely implemented (certainly in terms of its ES bindings) by 
ES engine implementors.  The "us vs them" mentality I see so much of on 
this list is very discouraging, honestly.

> Are there some DOM prototype methods/accessors that are non-enumerable?

Not in the Web IDL spec or in Gecko or IE as far as I know.

I believe toString on things like HTMLAnchorElement is not enumerable in 
Chrome and Safari.  See

I'm not aware of anything else in the "DOM" that's not enumerable.


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